George l



gnu@ tang stent @ffice Letters Patent No. 79,885, dated July 14, B68.

IMPROVEMENT In 'WINDLAss @in Stlgrntlr rentrer it in there tcttnt granit inn trahir.; grati it tige simu.

v Be it known that I, GEORGE L. WOODS, of Newburyport, inthe county of Essex, and State of Massachusetts, have invent-ed Va. new and improved Windlass, of which the following is a full,'clear, and exact description, reference being had to the accompanying drawings, making a partei' this specification, in which` Figure Y1 is a-verticalllongitudinal section of a windlass embodying my invention.`

Figure 2 is an end elevation of the same, showing its parts in perspective.

The object of myinvention -is to furnish a windlass by which a chain or cable shall` be wound-in with a steady continuous motion. y v v The severe strain upon the cable and windlass, resulting from the present method of winding by successive starts and rests, it is desirable to avoid.

The loss of ower besides b windinc in this manner. is considerable since'the heav members of the 7 n i 7 y machine are brought completely to rest between the impulses, thus entirely losing their acquired momentum.

, The invention consists in a combination of mechanism by which the turning di" a capstan causes the revolution oi' two wheels, upon,which Yare cranks, connected by link with ratchets, which actuate the windlass. The cranks referred to are upon wheels independent of each other, and so arranged that both the links can never be simultaneously at rest. The capstan may be readily disengaged and ,employed for othenpurposes when desirable. l

Referring to the drawings, the parts marked a are portions of the deck and timbers of a Yessel; a is the` foot of the 'bowspritg c is an ordinary oapstan, which turns about a vertical spindle, cZ, supported upon a step, cZ. AA sliding key, e, upon the shaft UZ, which may be moved up'or down easily, by employing asuitable instrument, introduced after the removal of the capstan-cover, permits 'the capstan e and the shaft cZ to engage together or to be disengaged, as required.

By the employment of spur-wheels, motion is communicated from the shaft alto the shaft eZ". The spur wheels fandf are fixed upon the shafts d and d respectively. By a suitable arrangement of the mechanism, mechanical power rnay be exchanged for velocity, or m'ee versa.

To the vertical shaft CZ, besides the spur-wheel f', a bevel-wheel, g, is attached. The bevel-wheel g engages with two similar bevel-wheels, :t and t, which are independent of each other, and are maintained in their positions ina suitable manner.

Upon the outer face of' each wheel 7th is a c1ankpin,'7c, cach of which 'is connected by a link, Z, with a ratchet, Z', constructedand combined with the cylinder 1*, in the usual manner# l The revolution'of the wheel y causes the beve1-wheels Zz amlt to revolve in contrary directions, but the positions ofthe two crank-pins Zt are such that the twolinks Znever pass a dead-point simultaneously;- there? fore the ratchets Zfare, the .one or the other, constantly in action. The cylinder r is braced and kept from counter-revolution by a detent in the customary way..

s s' represent the levers which cause the ratchets Z. to advance and recede at successive intervals, when combined with the links S', as in the common ship-windlass. These levers maybe employed in case'the combination specified is fromany cause disabled.

What I claimes my invention, and desire to secure by Letters Patent, is-

'lhe arrangement of thc capstan c, shaft cZ, gears ff, and the bev la1-gearsigv h t, in connection with the windlas's r, when constructed and operated vas and for the purpose set forth.

In testimony whereof, I lia-resigned my name to this specification in the presence of two subscribing witnesses.

eno. L. wooDs.

Witnesses:

J. H. ADAMS, A. H. HARRIS. 

